WMSIC Electronic Components

DOWO SJD12C36L01

ModelSJD12C36L01
PackageSOD-123
BrandDOWO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO SJD12C36L01
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SJD12C36L01
Electronic Component
1
Package
SOD-123
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0265602949
Voltage
58.1V
Current(Ir)
1uA
Voltage(VBR)
40V
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SJD12C36L01瞬态抑制二极管(TVS)产品概述

一、产品定位与核心功能

SJD12C36L01是一款双向瞬态抑制二极管(TVS),由国内专业保护器件品牌东沃(DOWO)研发生产,核心作用是快速响应电路中的瞬态过压(如ESD静电放电、雷电浪涌、开关瞬态),将过压钳位至安全范围,避免敏感电子元器件(如MCU、传感器、通信芯片)因过压击穿损坏,广泛适配低压敏感电路的防护需求。

二、关键电气参数深度解析

该器件参数经过精准设计,覆盖保护精度与强度的核心需求,关键参数及意义如下:

  1. 反向截止电压(VRWM):36V
    器件正常工作时可承受的最大反向偏置电压,此时处于截止状态,无明显导通电流,不影响电路正常功能。
  2. 击穿电压(VBR):最小40V
    器件从截止态向导通态转变的电压阈值,比VRWM高4V,确保电路在正常电压波动(如电源纹波)下不会误触发保护,提升系统稳定性。
  3. 钳位电压(VC):58.1V(@峰值脉冲电流IPP=3.44A)
    瞬态过压发生时,器件快速导通并将电压钳位至58.1V,是保护的核心指标——该电压需低于被保护器件的最大耐压(如常见MCU耐压60V),可有效避免器件损坏。
  4. 峰值脉冲功率(Ppp):1kW(@8/20μs浪涌波形)
    8/20μs为标准雷电浪涌波形(前沿8μs上升至峰值,半峰值持续20μs),器件可承受1kW峰值脉冲功率,覆盖多数低压场景的浪涌强度。
  5. 反向漏电流(Ir):1μA(@VRWM=36V)
    正常反向偏置时漏电流极小,不会增加电路功耗,适合低功耗设计(如便携电子、物联网终端)。
  6. 峰值脉冲电流(IPP):3.44A
    对应钳位电压时的最大脉冲电流能力,可快速泄放瞬态能量,缩短过压持续时间。

三、封装形式与典型应用场景

1. 封装特点

采用SOD-123表面贴装封装,尺寸紧凑(约2.4mm×1.6mm×1.0mm),适配高密度PCB设计;支持回流焊工艺,适合批量自动化生产,降低客户制造成本。

2. 典型应用

  • 消费电子:手机、平板、笔记本的充电接口、Type-C数据端口,防护静电放电(符合IEC 61000-4-2标准);
  • 通信设备:路由器、交换机、光模块的RJ45、SFP接口,抑制雷电浪涌及开关瞬态;
  • 工业控制:PLC输入输出端口、传感器节点,防护现场电磁干扰及浪涌;
  • 汽车电子:车载信息娱乐系统、辅助驾驶的低压控制电路(适配12V系统)。

四、品牌与可靠性优势

东沃(DOWO)作为国内专注保护器件的厂商,SJD12C36L01经过多重可靠性验证:

  • 温度范围:-55℃~150℃(工业级宽温),适配极端环境;
  • 脉冲寿命:多次(≥1000次)8/20μs浪涌冲击后,参数无明显漂移;
  • 一致性:批量生产一致性好,漏电流、钳位电压偏差控制在±5%以内,降低系统设计风险。

五、选型与使用注意事项

  1. 选型匹配:
    VRWM需略高于被保护电路的正常工作电压(如电路工作电压30V,选36V VRWM);钳位电压需低于被保护器件的最大耐压(如器件耐压60V,58.1V钳位电压安全)。
  2. 使用要点:
    需并联在被保护电路两端(双向TVS无需区分正负极);PCB布线时,TVS与被保护器件的距离需≤10mm,减少寄生电感(避免浪涌时电感压降导致实际保护电压升高)。

该器件凭借紧凑封装、精准参数及高可靠性,成为低压敏感电路浪涌/ESD防护的高性价比选择,可有效提升系统抗干扰能力及使用寿命。

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